双明模耦合的双波段类电磁诱导透明研究  

Electromagnetic induction-like transparency in dual-band with dual-bright mode coupling

作　　者：宁仁霞[1,2,3] 黄旺 王菲 孙剑 焦铮[1] Ning Ren-Xia;Huang Wang;Wang Fei;Sun Jian;Jiao Zheng(School of Information Engineering,Huangshan University,Huangshan 245041,China;Key Laboratory of Radar Imaging and Microwave Photonics of Ministry of Education,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;Engineering Technology Research Center of Intelligent Microsystems of Anhui Province,Huangshan 245041,China)

机构地区：[1]黄山学院信息工程学院,黄山245041 [2]南京航空航天大学,雷达成像与微波光子技术教育部重点实验室,南京211106 [3]智能微系统安徽省工程技术研究中心,黄山245041

出　　处：《物理学报》2022年第1期94-99,共6页Acta Physica Sinica

基　　金：全国大学生创新创业训练项目(批准号:202010375030);安徽省高校自然科学项目(批准号:KJHS2020B07,KJ2020A0684);雷达成像与微波光子技术教育部重点实验室开放课题(批准号:NJ20210006)资助的课题。

摘　　要：本文设计了一种双层开口方环和双C型结构的超材料结构,在太赫兹波段具有双波段的类电磁诱导透明效应.该结构在1.438 THz和1.699 THz处出现透射峰.通过电磁场分布分析讨论产生双频带电磁诱导透明的原因,利用等效电路分析方法进一步解释了超材料中的类电磁诱导透明效应.研究了超材料开口方环的开口大小和双C型结构距离以及改变入射角度时对透射窗口的影响,结果发现在改变入射角度时,所设计材料透射谱线变化较大,表现出对角度的高敏感性.同时,改变环境的介电常数可以得到该结构的透射谱产生明显的红移.以上研究结果表明该结构在角度滤波器,折射率传感器等器件中有潜在的应用.In this paper, a metamaterial structure with a double-layer split square ring and a double C-shaped structure is designed, which has dual-band electromagnetically induced transparency effects in the terahertz band. This structure has transmission peaks at 1.438 THz and 1.699 THz. Through the analysis of the surface current distribution, the reasons for the dual-band electromagnetically induced transparency are discussed. The effect of the designed metamaterial on the transmission window is studied when the opening size of the open square ring and the distance of the double C-shaped structure and the incident angle are changed. At an incident angle, the transmission spectrum of the designed material changes greatly, implying that it is highly sensitive to angle. The research results show that the structure has potential applications in sensors and angle filters.

关 键 词：超材料 类电磁诱导透明 双波段 等效电路 

分 类 号：TB34[一般工业技术—材料科学与工程] O441.4[理学—电磁学]